Person
Alireza Ghafarollahi
This person is no longer with EPFL
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Related publications (7)
Please note that this is not a complete list of this person’s publications. It includes only semantically relevant works. For a full list, please refer to Infoscience.
Strengthening mechanisms in dilute and random solid solution high-entropy BCC alloys
Tuning the mechanical properties of metals, including strength, through adjusting the type and/or concentration of added solute elements, has been recognized as an effective way to design and produce materials with desired or optimized mechanical propertie ...
EPFL2022High energy barriers for edge dislocation motion in body-centered cubic high entropy alloys
William Curtin, Recep Ekin Kubilay, Francesco Maresca, Alireza Ghafarollahi
Recent theory proposes that edge dislocations in random body-centered cubic (BCC) high entropy alloys have high barriers for motion, conveying high strengths up to high temperatures. Here, the energy barriers for edge motion are computed for two model allo ...
NATURE RESEARCH2021Theory of kink migration in dilute BCC alloys
William Curtin, Alireza Ghafarollahi
Plastic deformation in elemental BCC metals and dilute alloys is controlled by the slower of the kink pair nucleation and kink migration processes along screw dislocations. In alloys nucleation is facilitated and migration inhibited, leading to a concentra ...
2021